[JAVA-25518] Upgraded spring-boot-mvc-4 module to spring boot 3 (#14860)

spring-boot-modules/spring-boot-mvc-4/src/test/java/com/baeldung/utils/UtilsControllerIntegrationTest.java

@@ -1,32 +1,34 @@
 package com.baeldung.utils;
 
 import com.baeldung.utils.controller.UtilsController;
-import org.junit.Before;
-import org.junit.Test;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.mockito.InjectMocks;
-import org.mockito.MockitoAnnotations;
+
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 
+import static org.mockito.MockitoAnnotations.openMocks;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
-public class UtilsControllerIntegrationTest {
+class UtilsControllerIntegrationTest {
 
     @InjectMocks
     private UtilsController utilsController;
 
     private MockMvc mockMvc;
 
-    @Before
+    @BeforeEach
     public void setup() {
-        MockitoAnnotations.initMocks(this);
+        openMocks(this);
         this.mockMvc = MockMvcBuilders.standaloneSetup(utilsController).build();
 
     }
 
     @Test
-    public void givenParameter_setRequestParam_andSetSessionAttribute() throws Exception {
+    void givenParameter_setRequestParam_andSetSessionAttribute() throws Exception {
         String param = "testparam";
         this.mockMvc.perform(post("/setParam").param("param", param).sessionAttr("parameter", param)).andExpect(status().isOk());
     }